On Thu, Jun 04, 2026 at 02:09:40PM +0530, Aneesh Kumar K.V (Arm) wrote:

Protected virtualization guests use memory encryption, so advertise that to
the rest of the kernel through cc_platform_has(CC_ATTR_MEM_ENCRYPT).

s390 already forces DMA mappings to be unencrypted for protected
virtualization guests through force_dma_unencrypted(). Add
ARCH_HAS_CC_PLATFORM and provide the matching cc_platform_has()
implementation

Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>
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Nit: just drop the --- line if you did intend to cc those people.
Nothing wrong for them to end up in the commit log (proof that they've
been cc'ed if they did not reply ;)).

-- 
Catalin